Hydrogeomorphometry and deforestation in the Manicore River microbasin, Western Amazon, Brazil

被引：0

作者：

Vendruscolo, Jhony ^{[1
]}

Cavalheiro, Wanderson Cleiton Schmidt ^{[2
]}

Rosa, Diogo Martins ^{[1
]}

Stachiw, Rosalvo ^{[3
]}

Vendruscolo, Rodrigo ^{[4
]}

Siqueira, Aline da Silva ^{[5
]}

Biggs, Trent ^{[6
]}

机构：

[1] Univ Fed Rondonia, Dept Engn Florestal, Lab Geoproc & Meio Ambiente GEOMA, Campus Rolim de Moura, Rolim De Moura, Rondonia, Brazil

[2] Univ Fed Rondonia, Programa Posgrad Ciencias Ambientais PPGCA, Lab Geoproc & Meio Ambiente GEOMA, Campus Rolim de Moura, Rolim De Moura, Rondonia, Brazil

[3] Univ Fed Rondonia, Programa Posgrad Ciencias Ambientais PPGCA, Grp Pesquisa Geoproc & Meio Ambiente GEOMA, Dept Engn Florestal,Grp Pesquisa Lab Aguas, Campus Rolim de Moura, Rolim De Moura, Rondonia, Brazil

[4] Univ Fed Rondonia, Dept Agron, Campus Rolim de Moura, Rolim De Moura, Rondonia, Brazil

[5] Univ Fed Rondonia, Dept Engn Florestal, Campus Rolim de Moura, Rolim De Moura, Rondonia, Brazil

[6] San Diego State Univ, Dept Geog, San Diego, CA 92182 USA

来源：

REVISTA GEOGRAFICA VENEZOLANA | 2019年

关键词：

soil cover; water resources; environmental planning; microbasin; BASIN;

D O I：

暂无

中图分类号：

P9 [自然地理学]; K9 [地理];

学科分类号：

0705 ; 070501 ;

摘要：

Knowledge of the morphometric characteristics and land cover are essential for the development of plans that aim at understanding hydrological processes. The objective was to characterize the morphometry and to evaluate the rate of deforestation in the microbasin of the Manicore River. Images (Palsar sensor) were used for altitude and relief, and images of the Landsat 5 and Landsat 8 satellites were used to evaluate soil cover for the years 1985, 1995, 2005 and 2015. The microbasin has a dendritic drainage, pattern of 5th order, with high drainage density, 2.96 water source km(-2), sinuous drainage with concentration time of 7 hours and 48 min. Deforestation increased from 1985 to 2005, but there was an increase in forest area from 2005 to 2015, mainly in areas of riparian forests. The microbasin has low susceptibility to flooding, but due to the size of the anthropic area, conservation techniques are necessary.

引用

页码：226 / 241

页数：16

共 32 条

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